Hot-water-tank heater



Apr. 2 1923. 1,452,676

C. E. COLE HOT WATER TANK HEATER Fil ed June 4, 1921 o o o o 0 O O O O o o o o FiT \11 H M n' M I g J an i J w ll? ll 12 M h l I 20 t J 1.9

glwcnl cr C.E. Cole.

Patented Apr. 24:, 1923. I

oLIrronn cone, or IRMinG AM, "ALAB MA.

c QT- MWY- A HEATER f To all whom z'tmay concern: I Be it known that LCLIrFoRoE. CoLn',-"a citizen of the United States ofAnierica, re siding at Birmingham,"in the county of Je f ferson and State of Alabama, have invented certain new and useful Improvements Hot-WVater-Tank Heaters, of which the fol lowing is a"specification. This invention 'relatesto a gas burnin water heater and isniore particularly de-' signed as an attachment; for hot water boilers tothe end that the water'mayjbe heated therein most efficiently and without 'requir ing any change in the wateuconne'ctions.

More particularly my invention relates to a"jacketadapted to partly; surround "and preferably to overhang the top of any standard kitchen boiler, having suitable meansfor attaching it in place :on the boiler and having a bottom burner which discharges the products of combustion intoithe "*restricted arcuate flue provided f'be'tween the heater and boiler.

able in the ordinary coil tank heater and by reason of the long upwardcirculation in the arcuate flue my heater will consume, less gas. As the jacket is insulated and covers a substantial portion of the boiler it'will act effectively to keep the water .therein hot 'for a longtime. The jacket heater is of pleasing appearance; has no exposed fittings, re-

' quires less room than the ordinary heater,

is. much less expensive to install as no water connections needto bechanged, and it can be readily removed and replaced without skilled labor. j

These and other advantages of my invention willbe better understood by reference to the accompanying drawings which illustrate the heater attachment in its preferred embodiments only, and in'which:

Fig. 1 isa side elevation of a standard Application filel i June 4, 1921. Serial No. 47 4.,972.

kitchen 'hot waterboiler with'oneof my invention applied "thereto and shown partly in elevation and partly in section.

Fl-g. 2 lea-sectional view taken on the line 3 is a partial ins heater attachment shown in "Fig. 1.

Fig-A is an inside elevation of my preferredfitype of heater attachment.

ide elevation of th if" Fig. 5 is a cross sectional view on the line 5-5 of Fig. 4. I

Similar reference numerals refeimto similar parts throughoutt-he drawings. In the embodiment of my inventionillustrated in Figs. 1 to 3, a typical kitchen nections, My heater attach'ment willFbe made to fit the various standard sizes of .boiilers"" and comprises a conca'vo c onvex j'acket S formed by {an outer'sheet metal plate boiler 1 is shown with standard water con 4 and an inner sheet metal plate 6 andriian interposed layer of asbestosor like insulas tion 5. The plate e'has its side edges bent in sharply at 7 past the inturned edge 8 of the sheets5 and 6 and is then bent under them and then outwardly and again infwardly to form a V-shaped anti-leak pocket or flue 9 extending the full length of each side wall of the casing from bottom'to top thereof and interposed between the heater flueforthe products of combustion and the joints formed betweenthe side edges of the jacket and the boiler. The attachment has an arched top plate 10 which fits over the adjacent half section of theboiler top and serves to close the top of the flue and in part to support the attachment which is' heldrin position by a series of straps 11 which are attached to the jacket 3- and have their free ends clamped about the boiler by screw bolts 12. I provide a door 13 near the bottom of the jacket and in convenient position to give access to light the gas burner 14L which is of a Bunsen type controlled by a cock 15. V

In the design shown in Figs. 1 to 3, the

inside concave face of the attachment has two vertical side plates 16 mounted in position therein by having their outer ends outturned and clamped between the jacket and the flue walls 9, while, the inner edges of these plates are bent inwardly as at 1''? to yieldingly engage the wall of the boiler V and thus form between them a central flue 18 which extends from the bottom above the burner to a point near the top of the jacket I products of combustioninto the flue where these walls 17 are interrupted to leave the lateral ventsl9 by-means of which the products of combustion rising from the burner 14 through the center flue 18 will '5 pass over and down on each side of flue 18 and escape at the bottom of the jacket. An asbestos pad 20 is interposed across the top of the inner face of the jacket to prevent the escape of the products under the top 10.

In the preferred design shown in Figs. 1 and 5, the plates 16 and fluewalls 17 are omitted and a series of vent holes 21 are provided at the top of the-jacket. Here the burner 22 is made wider to practically subtend the arcbetween the anti-leak fluesr9.

This invention is not intended to be re stricted in scope to the specific embodiments shown, but contemplates such modifications as come within the spirit and scope of the claims. I I

Having thus described my invention, 1 what I claim as new and desire to secure by Letters Patent, is: e l

1. A heating attachment for hot water means to attach said jacket to the side of a hot water boiler, flame leak prevention pockets extending-along the vertical side edges of said jacket, and a gas burner to deliver space between the jacket and boiler.

boilers, comprisinga concavoconvex jacket,

2. The combination with a hot water boiler, of an insulated heating jacket substantially co-extensive in length with the boiler andadapted to subtend a substantial arc thereof, the jacket being shaped to form between it and the boiler an arcuate flue 'tallic jacket lined with suitable insulating material and having along each side edge an internal V-shaped flange adapted with the boiler which it engages to form a vertical internalflue for preventing the lateral leakage of flames, and a burner for delivering products ofcombustion into the flue space between'the boiler and jacket.

In testimony whereof I afliX my signature.

CLIFFORD E. COLE.

I Witness:

NOMIE WELSH. 

